Visit a free evangelical church in Germany and a free evangelical church in the Philippines and you may find significant differences: in worship style, in how the Lord's Supper is observed, in views on spiritual gifts, in the role of women in leadership. And yet these congregations belong to the same family, read the same Bible, confess the same Lord, and partner together in mission. How?
The answer is what theologians call the primary/secondary distinction — and it is the operating system of the free evangelical tradition.
Two categories, not one
The distinction is simple to state, though demanding to apply. It recognises that Christian doctrines do not all carry the same weight. Some are primary: they belong to the core of the Christian confession, and agreement on them is necessary for genuine Christian fellowship. Others are secondary: they are real theological questions on which sincere, biblically serious Christians have disagreed for centuries, and on which the tradition grants freedom of conviction without loss of fellowship.
Primary doctrines include the Trinity, the full deity and humanity of Christ, the atoning and bodily-resurrection significance of the cross and empty tomb, the authority of Scripture as the written Word of God, justification by grace through faith, the necessity of personal conversion, and the bodily return of Christ. These are not negotiable. A church that abandons them has departed from Christianity, not merely from one tradition within it.
Secondary doctrines include the mode of baptism (immersion or sprinkling; infant or believer), the nature and ongoing gifts of the Holy Spirit, the proper role of women in church leadership, the millennium and other eschatological specifics, and various details of polity and church order. These are not trivial questions — Christians have written millions of words on each of them. But they are questions on which the tradition says: think carefully, hold your convictions, but do not make them tests of fellowship.
Where it comes from
The formula most associated with this approach — "in essentials unity, in non-essentials liberty, in all things love" — is often attributed to the seventeenth-century Lutheran theologian Rupertus Meldenius, though it achieved its modern currency through the Evangelical Alliance, founded in London in 1846. The Alliance was created precisely to provide a structure for cooperative evangelical work across denominational lines — and the primary/secondary distinction was its doctrinal architecture.
The free evangelical tradition inherited this architecture wholesale. Bodies like the Bund Freier Evangelischer Gemeinden in Germany, the Evangelical Covenant Church in the United States, and the Suomen Vapaakirkko in Finland all operate with explicit confessional minimalism: a short, strong statement on the primary matters, and deliberate silence or freedom on the secondary ones.
Why it matters now
In a polarised moment — within Christianity as much as in wider culture — the primary/secondary distinction offers a path between two failures. The first failure is doctrinal indifferentism: the slide into treating all theological positions as equally acceptable, abandoning the clarity of the gospel for a vague spirituality. The second failure is sectarianism: the multiplication of litmus tests until fellowship is restricted to those who agree on everything.
The free evangelical answer is a third way: hold the essentials firmly, and hold the non-essentials with open hands. It is not a perfect formula — the line between primary and secondary is always subject to dispute, and the tradition has its own debates about where exactly it falls. But as a governing disposition, it has enabled remarkable cooperation across the free evangelical world for nearly two centuries.